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Generalized recharge to and discharge from the Floridan Aquifer System. This layer covers the entire state of Florida. Aquifers are underground layers of rock and sand that hold water. These layers are made up of loosely packed sediments and layers of calcium-rich limestone and dolomite. In Florida, most of the population depends on the Upper Floridan aquifer for their drinking water. The Upper Floridan aquifer, which is the largest aquifer in the state, holds the ground water like a sponge. Holes in the rock that makes up the aquifer allow the water to move freely through it. The Upper Floridan aquifer stretches for 100,000 square miles beneath Florida and parts of Alabama, Georgia and South Carolina. |